145923861 has 16 divisors (see below), whose sum is σ = 201441024. Its totient is φ = 93901824.

The previous prime is 145923839. The next prime is 145923863. The reversal of 145923861 is 168329541.

145923861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145923861 - 2¹⁰ = 145922837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145923863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205 + ... + 17381.

It is an arithmetic number, because the mean of its divisors is an integer number (12590064).

Almost surely, 2^145923861 is an apocalyptic number.

It is an amenable number.

145923861 is a deficient number, since it is larger than the sum of its proper divisors (55517163).

145923861 is a wasteful number, since it uses less digits than its factorization.

145923861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14300.

The product of its digits is 51840, while the sum is 39.

The square root of 145923861 is about 12079.8949084833. The cubic root of 145923861 is about 526.4721925702.

The spelling of 145923861 in words is "one hundred forty-five million, nine hundred twenty-three thousand, eight hundred sixty-one".